Move UIImageview using the UITouches - iphone

Question

I have subclassed a uiview, in which I am adding two uiimageview, with one view for the background and another image view for an image which one i would like to move on touch. I am adding this subclass uiview from a view controller. The following is the code:
#interface CustomSlider : UIView
{
UIImageView *bgView;
UIImageView *customSliderImageView;
float minStartPoint,maxEndPoint;
}
- (id)initWithFrame:(CGRect)frame inView:(UIView*)mainView;
#end
#implementation CustomSlider
- (id)initWithFrame:(CGRect)frame inView:(UIView*)mainView {
if((self = [super init])) {
UIView *contentView = [[UIView alloc] initWithFrame:CGRectMake(15, 60, frame.size.width, frame.size.height)];
contentView.backgroundColor = [UIColor clearColor];
[mainView addSubview:contentView];
bgView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"price_96.png"]];
bgView.frame = CGRectMake(5, 0, frame.size.width - 10, 8 );
[contentView addSubview:bgView];
customSliderImageView= [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"price_100.png"]];
customSliderImageView.frame = CGRectMake(20, 0, 35, frame.size.height);
[contentView addSubview:customSliderImageView];
minStartPoint = 0;
UIPanGestureRecognizer* pgr = [[UIPanGestureRecognizer alloc]
initWithTarget:self
action:#selector(handlePan:)];
[customSliderImageView addGestureRecognizer:pgr];
[pgr release];
}
return self;
}
#end

Answer 1

AppDelegate Classes
**// .h File**
#import <UIKit/UIKit.h>
#class UITouchTutorialViewController;
#interface UITouchTutorialAppDelegate : NSObject <UIApplicationDelegate> {
UIWindow *window;
UITouchTutorialViewController *viewController;
}
#property (nonatomic, retain) IBOutlet UIWindow *window;
#property (nonatomic, retain) IBOutlet UITouchTutorialViewController *viewController;
#end
//////////////////////////////////////////////////////////////////////////////////
// .m File
#import "UITouchTutorialAppDelegate.h"
#import "UITouchTutorialViewController.h"
#implementation UITouchTutorialAppDelegate
#synthesize window;
#synthesize viewController;
- (void)applicationDidFinishLaunching:(UIApplication *)application {
// Override point for customization after app launch
[window addSubview:viewController.view];
[window makeKeyAndVisible];
}
- (void)dealloc {
[viewController release];
[window release];
[super dealloc];
}
#end
//////////////////////////////////////////////////////////////////////////////
UIViewController Classes
// .h file
#import <UIKit/UIKit.h>
#interface UITouchTutorialViewController : UIViewController {
IBOutlet UIImageView *cloud;
}
#end
// .m File
#import "UITouchTutorialViewController.h"
#implementation UITouchTutorialViewController
-(void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch *touch = [[event allTouches] anyObject];
CGPoint location = [touch locationInView:touch.view];
cloud.center = location;
}
-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
[self touchesBegan:touches withEvent:event];
}
/*
// Override initWithNibName:bundle: to load the view using a nib file then perform additional customization that is not appropriate for viewDidLoad.
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) {
// Custom initialization
}
return self;
}
*/
/*
// Implement loadView to create a view hierarchy programmatically.
- (void)loadView {
}
*/
/*
// Implement viewDidLoad to do additional setup after loading the view.
- (void)viewDidLoad {
[super viewDidLoad];
}
*/
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning]; // Releases the view if it doesn't have a superview
// Release anything that's not essential, such as cached data
}
- (void)dealloc {
[super dealloc];
}
#end